/* 讲师介绍 · 列表页 & 详情页 */
.lect-hero {
  background: linear-gradient(135deg, #0a2342 0%, #1a3a5c 55%, #0d3b6e 100%);
  padding: 72px 32px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.lect-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 100%, rgba(29,111,164,.25), transparent 70%);
  pointer-events: none;
}
.lect-hero-inner { position: relative; max-width: 820px; margin: 0 auto; }
.lect-hero-tag { font-size: 11px; letter-spacing: .16em; color: #c9a020; text-transform: uppercase; font-weight: 600; margin-bottom: 14px; }
.lect-hero h1 { font-family: 'Noto Serif SC', serif; font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 900; color: #fff; line-height: 1.25; margin-bottom: 12px; }
.lect-hero-sub { font-size: clamp(1.05rem, 2vw, 1.25rem); color: #c9a020; font-weight: 600; margin-bottom: 16px; }
.lect-hero-desc { color: rgba(255,255,255,.72); font-size: 1rem; line-height: 1.85; max-width: 680px; margin: 0 auto; }

.lect-section { padding: 64px 32px; max-width: 1200px; margin: 0 auto; }
.lect-section--alt { background: #f0f4f8; }
.lect-section--dark { background: #0a2342; color: #fff; }
.lect-sec-label { font-size: 11px; letter-spacing: .12em; color: #1d6fa4; text-transform: uppercase; font-weight: 600; margin-bottom: 8px; }
.lect-section--dark .lect-sec-label { color: #c9a020; }
.lect-sec-title { font-family: 'Noto Serif SC', serif; font-size: clamp(1.4rem, 2.8vw, 2rem); font-weight: 900; color: #0a1628; line-height: 1.3; margin-bottom: 12px; }
.lect-section--dark .lect-sec-title { color: #fff; }
.lect-sec-desc { color: #4a5568; font-size: 15px; line-height: 1.8; max-width: 760px; }
.lect-section--dark .lect-sec-desc { color: rgba(255,255,255,.6); }
.lect-sec-header { margin-bottom: 36px; text-align: center; }
.lect-sec-header .lect-sec-desc { margin: 0 auto; }

.lect-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.lect-card {
  background: #fff;
  border: 1px solid #dde4ee;
  border-radius: 16px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: transform .25s, box-shadow .25s, border-color .25s;
  min-height: 100%;
}
.lect-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(10,35,66,.12); border-color: #1d6fa4; }
.lect-card-photo {
  aspect-ratio: 4/5;
  background: #0a1628;
  overflow: hidden;
  position: relative;
}
.lect-card-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center top; display: block; }
.lect-card-founder {
  position: absolute; top: 12px; left: 12px;
  background: #c9a020; color: #0a2342;
  font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 6px;
}
.lect-card-body { padding: 22px 20px 24px; flex: 1; display: flex; flex-direction: column; }
.lect-card-name { font-family: 'Noto Serif SC', serif; font-size: 1.25rem; font-weight: 900; color: #0a1628; margin-bottom: 10px; }
.lect-card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.lect-card-tag { font-size: 11px; padding: 3px 8px; background: #e8f4fd; color: #1d6fa4; border-radius: 4px; font-weight: 600; }
.lect-card-tag--youth { background: #fef9e7; color: #92600a; }
.lect-card-oneline { font-size: 13.5px; color: #4a5568; line-height: 1.65; flex: 1; margin-bottom: 16px; }
.lect-card-link { font-size: 13px; font-weight: 600; color: #1d6fa4; display: inline-flex; align-items: center; gap: 6px; }

.lect-method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 8px; }
.lect-method-item { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); border-radius: 12px; padding: 22px 16px; text-align: center; }
.lect-method-item i { color: #c9a020; font-size: 20px; margin-bottom: 10px; }
.lect-method-item strong { display: block; color: #fff; font-size: .95rem; margin-bottom: 6px; }
.lect-method-item span { font-size: 13px; color: rgba(255,255,255,.5); line-height: 1.6; }

.lect-opens { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 28px; }
.lect-open-item { background: #fff; border: 1px solid #dde4ee; border-radius: 10px; padding: 16px; text-align: center; font-size: 14px; font-weight: 600; color: #0a1628; }

.lect-course-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.lect-course-card { background: #fff; border: 1px solid #dde4ee; border-radius: 12px; padding: 20px; }
.lect-course-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: #0a1628; }
.lect-course-card p { font-size: 13.5px; color: #4a5568; line-height: 1.65; margin-bottom: 12px; }
.lect-course-card a { font-size: 13px; font-weight: 600; color: #1d6fa4; text-decoration: none; }

.lect-qianren { background: #fff; border: 1px dashed #c9d4e0; border-radius: 14px; padding: 28px; text-align: center; }
.lect-qianren h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; color: #0a1628; }
.lect-qianren p { font-size: 14px; color: #4a5568; line-height: 1.75; max-width: 640px; margin: 0 auto; }

.lect-cta { text-align: center; padding: 56px 32px; background: linear-gradient(135deg, #0a2342, #1a3a5c); }
.lect-cta h2 { font-family: 'Noto Serif SC', serif; color: #fff; font-size: 1.6rem; margin-bottom: 20px; }
.lect-cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.lect-btn-primary { display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; background: #c9a020; color: #0a2342; border-radius: 10px; font-weight: 700; text-decoration: none; }
.lect-btn-outline { display: inline-flex; align-items: center; gap: 8px; padding: 13px 24px; border: 1.5px solid rgba(255,255,255,.35); color: #fff; border-radius: 10px; text-decoration: none; }

.lect-updated { text-align: center; font-size: 12px; color: #718096; margin-top: 24px; }

/* 详情页 */
.lect-breadcrumb { max-width: 1200px; margin: 0 auto; padding: 16px 32px 0; font-size: 13px; color: #718096; }
.lect-breadcrumb a { color: #1d6fa4; text-decoration: none; }
.lect-breadcrumb span { margin: 0 8px; opacity: .5; }

.lect-profile-hero {
  max-width: 1200px; margin: 0 auto; padding: 32px 32px 48px;
  display: grid; grid-template-columns: 320px 1fr; gap: 40px; align-items: start;
}
.lect-profile-photo { aspect-ratio: 4/5; border-radius: 16px; overflow: hidden; background: #0a1628; border: 1px solid #dde4ee; }
.lect-profile-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center top; }
.lect-profile-name { font-family: 'Noto Serif SC', serif; font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 900; color: #0a1628; margin-bottom: 10px; }
.lect-profile-role { color: #1d6fa4; font-weight: 600; font-size: 15px; margin-bottom: 14px; line-height: 1.6; }
.lect-profile-lead { font-size: 15px; color: #4a5568; line-height: 1.85; margin-bottom: 20px; }
.lect-profile-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.lect-profile-tag { padding: 6px 12px; background: #e8f4fd; color: #1d6fa4; border-radius: 8px; font-size: 12px; font-weight: 600; }

.lect-block { margin-bottom: 40px; }
.lect-block h2 { font-family: 'Noto Serif SC', serif; font-size: 1.2rem; font-weight: 900; color: #0a1628; margin-bottom: 14px; padding-bottom: 8px; border-bottom: 2px solid #e8f4fd; }
.lect-block p, .lect-block li { font-size: 15px; color: #4a5568; line-height: 1.85; }
.lect-block ul { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }
.lect-block ul li { padding: 8px 14px; background: #f0f4f8; border-radius: 8px; font-size: 14px; }

.lect-related { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.lect-related a { text-decoration: none; color: inherit; background: #fff; border: 1px solid #dde4ee; border-radius: 12px; overflow: hidden; transition: border-color .2s; }
.lect-related a:hover { border-color: #1d6fa4; }
.lect-related img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: contain;
  object-position: center center;
  background: #0a1628;
  display: block;
}
.lect-related-name { padding: 12px; font-size: 14px; font-weight: 700; text-align: center; color: #0a1628; }

.lect-back { display: inline-flex; align-items: center; gap: 8px; color: #1d6fa4; font-weight: 600; text-decoration: none; font-size: 14px; margin-top: 32px; }

/* 创始人权威人物档案页 */
body.lect-profile-archive .lect-profile-hero { align-items: center; }
body.lect-profile-archive .lect-profile-role { font-size: 16px; line-height: 1.75; }
body.lect-profile-archive .lect-profile-subline { font-size: 14.5px; color: #4a5568; line-height: 1.85; margin-bottom: 8px; }
body.lect-profile-archive .lect-profile-photo img { object-fit: contain; object-position: center center; }

.lect-arch-facts {
  display: flex; flex-wrap: wrap; gap: 10px; margin: 28px 0 0;
  padding: 0; list-style: none;
}
.lect-arch-facts li {
  padding: 8px 14px; background: #f0f4f8; border: 1px solid #dde4ee;
  border-radius: 999px; font-size: 13px; font-weight: 600; color: #0a1628;
}

.lect-arch-intro { font-size: 16px; line-height: 1.85; color: #4a5568; }
.lect-arch-intro p + p { margin-top: 16px; }

.lect-arch-timeline { position: relative; padding-left: 28px; border-left: 2px solid #dde4ee; }
.lect-arch-timeline-item { position: relative; padding-bottom: 28px; }
.lect-arch-timeline-item:last-child { padding-bottom: 0; }
.lect-arch-timeline-item::before {
  content: ''; position: absolute; left: -35px; top: 6px;
  width: 12px; height: 12px; border-radius: 50%;
  background: #1d6fa4; border: 2px solid #fff; box-shadow: 0 0 0 2px #1d6fa4;
}
.lect-arch-timeline-year { font-size: 13px; font-weight: 700; color: #1d6fa4; margin-bottom: 4px; }
.lect-arch-timeline-title { font-size: 16px; font-weight: 700; color: #0a1628; margin-bottom: 6px; }
.lect-arch-timeline-desc { font-size: 15px; color: #4a5568; line-height: 1.75; }

.lect-arch-research { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.lect-arch-research-card {
  background: #fff; border: 1px solid #dde4ee; border-radius: 14px; padding: 22px;
}
.lect-arch-research-num { font-size: 12px; font-weight: 700; color: #1d6fa4; letter-spacing: .06em; margin-bottom: 8px; }
.lect-arch-research-card h3 { font-size: 16px; font-weight: 700; color: #0a1628; margin-bottom: 8px; line-height: 1.45; }
.lect-arch-research-card p { font-size: 14px; color: #4a5568; line-height: 1.75; margin: 0; }

.lect-arch-mission {
  background: linear-gradient(135deg, #f0f4f8 0%, #e8f4fd 100%);
  border: 1px solid #dde4ee; border-radius: 16px; padding: 28px 32px;
  font-size: 17px; line-height: 1.85; color: #0a1628; font-weight: 500;
}

.lect-arch-gates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.lect-arch-gate {
  background: #fff; border: 1px solid #dde4ee; border-radius: 14px; padding: 24px 20px;
  position: relative; overflow: hidden;
}
.lect-arch-gate::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, #1d6fa4, #c9a020);
}
.lect-arch-gate-step { font-size: 12px; font-weight: 700; color: #c9a020; margin-bottom: 8px; }
.lect-arch-gate h3 { font-size: 17px; font-weight: 700; color: #0a1628; margin-bottom: 10px; }
.lect-arch-gate-problem, .lect-arch-gate-result { font-size: 13.5px; color: #4a5568; line-height: 1.65; margin-bottom: 8px; }
.lect-arch-gate-result { color: #1d6fa4; font-weight: 600; margin-bottom: 14px; }
.lect-arch-gate a { font-size: 13px; font-weight: 600; color: #1d6fa4; text-decoration: none; }

.lect-arch-method { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; }
.lect-arch-method-step {
  text-align: center; padding: 18px 12px; background: #f0f4f8;
  border-radius: 12px; border: 1px solid #dde4ee;
}
.lect-arch-method-step strong { display: block; font-size: 15px; color: #0a1628; margin-bottom: 6px; }
.lect-arch-method-step span { font-size: 13px; color: #4a5568; line-height: 1.55; }

.lect-arch-articles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.lect-arch-article {
  display: flex; flex-direction: column; background: #fff; border: 1px solid #dde4ee;
  border-radius: 14px; padding: 22px; text-decoration: none; color: inherit;
  transition: border-color .2s, box-shadow .2s;
}
.lect-arch-article:hover { border-color: #1d6fa4; box-shadow: 0 8px 24px rgba(10,35,66,.08); }
.lect-arch-article h3 { font-size: 15px; font-weight: 700; color: #0a1628; margin-bottom: 10px; line-height: 1.5; flex: 1; }
.lect-arch-article p { font-size: 13px; color: #4a5568; line-height: 1.65; margin-bottom: 14px; }
.lect-arch-article span { font-size: 13px; font-weight: 600; color: #1d6fa4; }

.lect-arch-photos { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.lect-arch-photos img {
  width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: 12px;
  border: 1px solid #dde4ee; display: block;
}
.lect-arch-photos figcaption { font-size: 13px; color: #718096; margin-top: 8px; text-align: center; }

.lect-arch-courses { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.lect-arch-course {
  background: #fff; border: 1px solid #dde4ee; border-radius: 14px; padding: 22px;
  text-decoration: none; color: inherit; transition: border-color .2s;
}
.lect-arch-course:hover { border-color: #1d6fa4; }
.lect-arch-course h3 { font-size: 16px; font-weight: 700; color: #0a1628; margin-bottom: 8px; }
.lect-arch-course p { font-size: 14px; color: #4a5568; line-height: 1.65; margin-bottom: 12px; }
.lect-arch-course span { font-size: 13px; font-weight: 600; color: #1d6fa4; }

.lect-arch-faq { display: flex; flex-direction: column; gap: 12px; }
.lect-arch-faq-item {
  background: #fff; border: 1px solid #dde4ee; border-radius: 12px; padding: 18px 20px;
}
.lect-arch-faq-item h3 { font-size: 15px; font-weight: 700; color: #0a1628; margin-bottom: 8px; }
.lect-arch-faq-item p { font-size: 14px; color: #4a5568; line-height: 1.75; margin: 0; }

.lect-block--wide { max-width: 100%; }

@media (max-width: 960px) {
  .lect-grid { grid-template-columns: repeat(2, 1fr); }
  .lect-method-grid, .lect-opens { grid-template-columns: repeat(2, 1fr); }
  .lect-profile-hero { grid-template-columns: 1fr; }
  .lect-profile-photo { max-width: 280px; margin: 0 auto; }
  .lect-related { grid-template-columns: repeat(2, 1fr); }
  .lect-arch-research, .lect-arch-articles, .lect-arch-courses, .lect-arch-gates { grid-template-columns: 1fr; }
  .lect-arch-method { grid-template-columns: repeat(2, 1fr); }
  .lect-arch-photos { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .lect-section, .lect-hero { padding-left: 20px; padding-right: 20px; }
  .lect-grid, .lect-course-grid, .lect-method-grid, .lect-opens, .lect-related { grid-template-columns: 1fr; }
  .lect-breadcrumb { padding-left: 20px; padding-right: 20px; }
  .lect-profile-hero { padding: 24px 20px 40px; }
  .lect-arch-method { grid-template-columns: 1fr; }
}